179 lines
6.2 KiB
Ada
179 lines
6.2 KiB
Ada
------------------------------------------------------------------------------
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-- --
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-- GNAT RUN-TIME COMPONENTS --
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-- --
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-- G N A T . M E M O R Y _ D U M P --
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-- --
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-- B o d y --
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-- --
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-- Copyright (C) 2003-2014, AdaCore --
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-- --
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-- GNAT is free software; you can redistribute it and/or modify it under --
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-- terms of the GNU General Public License as published by the Free Soft- --
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-- ware Foundation; either version 3, or (at your option) any later ver- --
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-- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
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-- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
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-- or FITNESS FOR A PARTICULAR PURPOSE. --
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-- --
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-- As a special exception under Section 7 of GPL version 3, you are granted --
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-- additional permissions described in the GCC Runtime Library Exception, --
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-- version 3.1, as published by the Free Software Foundation. --
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-- --
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-- You should have received a copy of the GNU General Public License and --
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-- a copy of the GCC Runtime Library Exception along with this program; --
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-- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see --
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-- <http://www.gnu.org/licenses/>. --
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-- --
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-- GNAT was originally developed by the GNAT team at New York University. --
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-- Extensive contributions were provided by Ada Core Technologies Inc. --
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-- --
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------------------------------------------------------------------------------
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with System; use System;
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with System.Img_BIU; use System.Img_BIU;
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with System.Storage_Elements; use System.Storage_Elements;
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with GNAT.IO; use GNAT.IO;
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with GNAT.Debug_Utilities; use GNAT.Debug_Utilities;
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with Ada.Unchecked_Conversion;
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package body GNAT.Memory_Dump is
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----------
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-- Dump --
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----------
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procedure Dump
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(Addr : Address;
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Count : Natural)
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is
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begin
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Dump (Addr, Count, Prefix => Absolute_Address);
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end Dump;
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procedure Dump
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(Addr : Address;
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Count : Natural;
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Prefix : Prefix_Type)
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is
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Ctr : Natural := Count;
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-- Count of bytes left to output
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Offset_Buf : String (1 .. Standard'Address_Size / 4 + 4);
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Offset_Last : Natural;
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-- Buffer for prefix in Offset mode
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Adr : Address := Addr;
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-- Current address
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N : Natural := 0;
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-- Number of bytes output on current line
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C : Character;
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-- Character at current storage address
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AIL : Natural;
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-- Number of chars in prefix (including colon and space)
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Line_Len : Natural;
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-- Line length for entire line
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Hex : constant array (0 .. 15) of Character := "0123456789ABCDEF";
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type Char_Ptr is access all Character;
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function To_Char_Ptr is new Ada.Unchecked_Conversion (Address, Char_Ptr);
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begin
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case Prefix is
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when Absolute_Address =>
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AIL := Address_Image_Length - 4 + 2;
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when Offset =>
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Offset_Last := Offset_Buf'First - 1;
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Set_Image_Based_Integer (Ctr, 16, 0, Offset_Buf, Offset_Last);
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AIL := Offset_Last - 4 + 2;
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when None =>
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AIL := 0;
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end case;
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Line_Len := AIL + 3 * 16 + 2 + 16;
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declare
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Line_Buf : String (1 .. Line_Len);
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begin
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while Ctr /= 0 loop
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-- Start of line processing
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if N = 0 then
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case Prefix is
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when Absolute_Address =>
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declare
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S : constant String := Image (Adr);
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begin
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Line_Buf (1 .. AIL) := S (4 .. S'Length - 1) & ": ";
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end;
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when Offset =>
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declare
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Last : Natural := 0;
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Len : Natural;
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begin
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Set_Image_Based_Integer
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(Count - Ctr, 16, 0, Offset_Buf, Last);
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Len := Last - 4;
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Line_Buf (1 .. AIL - Len - 2) := (others => '0');
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Line_Buf (AIL - Len - 1 .. AIL - 2) :=
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Offset_Buf (4 .. Last - 1);
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Line_Buf (AIL - 1 .. AIL) := ": ";
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end;
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when None =>
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null;
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end case;
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Line_Buf (AIL + 1 .. Line_Buf'Last) := (others => ' ');
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Line_Buf (AIL + 3 * 16 + 1) := '"';
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end if;
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-- Add one character to current line
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C := To_Char_Ptr (Adr).all;
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Adr := Adr + 1;
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Ctr := Ctr - 1;
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Line_Buf (AIL + 3 * N + 1) := Hex (Character'Pos (C) / 16);
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Line_Buf (AIL + 3 * N + 2) := Hex (Character'Pos (C) mod 16);
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if C < ' ' or else C = Character'Val (16#7F#) then
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C := '?';
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end if;
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Line_Buf (AIL + 3 * 16 + 2 + N) := C;
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N := N + 1;
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-- End of line processing
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if N = 16 then
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Line_Buf (Line_Buf'Last) := '"';
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GNAT.IO.Put_Line (Line_Buf);
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N := 0;
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end if;
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end loop;
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-- Deal with possible last partial line
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if N /= 0 then
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Line_Buf (AIL + 3 * 16 + 2 + N) := '"';
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GNAT.IO.Put_Line (Line_Buf (1 .. AIL + 3 * 16 + 2 + N));
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end if;
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end;
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end Dump;
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end GNAT.Memory_Dump;
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